scene. a frightening indication this may not be the end to the deadly rivalry. we have been getting reports bikers throughout the state are headed this way. reporter: law enforcement officials have established a perimeter around this area only allowing the media inside. this is still an active crime scene. alisyn. what an incredible story. nick thanks. yosemite national park authorities say legendary rock climber dean potter was one of two men who died after reportedly attempting a 3500 foot base jump in wing suits into your cement valley. potter and grand punch were reportedly missing after their jump on sunday. park officials say they tried to clear a gap into the cliffs. base jumping is illegal in yosemite. last year potter was here on new day, after this video of him jumping with his dog whisper went viral. we will show that you in a second. this is a dean told us about